The synthesis of transition metal nitrides via thermolysis of metal-ammine complexes, Part I: Chromium nitride |
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| Authors: | KS Weil |
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| Institution: | Materials Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA |
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| Abstract: | The thermal decomposition of a CrN precursor, hexaammine chromium(II) chloride, in ammonia has been investigated via a combination of thermogravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy, and X-ray diffraction. Upon heating, Cr(NH3)6]Cl2 sequentially loses ammonia ligands, ultimately forming CrCl2·NH3 at ∼400 °C. When heat-treated to 500 °C in ammonia, this compound ammonolyzes to form nanocrystalline CrN. |
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| Keywords: | Transition metal nitride Ammine complex Ammonolysis |
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